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土壤耕作部件宏观触土曲面减阻性能研究现状分析

, PP. 47-52

Keywords: 土壤耕作部件,触土曲面,准线,曲率,工作阻力

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Abstract:

对土壤耕作部件宏观触土曲面进行优化设计可有效减小工作阻力，设计的耕作部件具有结构简单、成本低、无额外能耗等特点。构成耕作部件宏观触土曲面的元线、准线及元线相对于准线的运动方式均会对工作阻力产生重要影响。从准线曲率的角度对各种土壤耕作部件触土曲面进行分类。阐述了耕作部件宏观触土曲面主要几何参数：宽度、切削角、耕作深度、宽深比和纵深比等对工作阻力的影响。特别分析了不同准线形式触土曲面，包括直线、圆弧、简单曲线及变曲率复杂曲线等触土曲面对工作阻力及土壤扰动的影响。

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